Home / 143,016.33-197,280.51-89,207.90

Finding the Fourth Proportional to 143,016.33, 197,280.51 and 89,207.90

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Solution

The fourth proportional to 143,016.33, 197,280.51 and 89,207.90 is: 123,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,016.33 : 197,280.51 = 89,207.90 : x
  2. Step 2: Convert to fraction form
    143,016.33/197,280.51 = 89,207.90/x
  3. Step 3: Cross multiply
    143,016.33x = 197,280.51 × 89,207.90
  4. Step 4: Simplify right side
    143,016.33x = 17,598,979,426.90
  5. Step 5: Solve for x
    x = 17,598,979,426.90/143,016.33
  6. Step 6: Final answer
    x = 123,055.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.